How would i find out what kind of machine the AC spark plug R2925-670-0310-Z150 go to?

Question

this plug is a 18mm .014 inch electrode gap other # on the package are N383-61718A it was manufactured in Flint Mi in 7/1961 contr.# 5612403 (151)

Answer 1

You'd go to the AC Delco website and key in the part number. Here it is:

http://198.208.187.182/internet/VehicleP...

You could also email them at:

http://www.acdelco.com/contact/